...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aerospace science and technology >High-resolution monitoring of aerospace structure using the bifurcation of a bistable nonlinear circuit with tunable potential-well depth
【24h】

High-resolution monitoring of aerospace structure using the bifurcation of a bistable nonlinear circuit with tunable potential-well depth

机译：使用具有可调谐潜在井深度的双稳态非线性电路分叉的航空航天结构的高分辨率监测

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Monitoring structural parameter and strain of a flight vehicle is important for safety inspection. To detect the nuanced variation of the structural parameter and strain, this study proposes a novel bistable nonlinear circuit with tunable potential-well depth (TPWD), and integrates it with electromechanical transducer (e.g. piezoelectric transducer and strain gauge) to form a high-resolution structural sensor. The TPWD bistable circuit's bifurcation feature can significantly magnify the response's difference before and after the variation of the structural parameter and strain. It is beneficial to detection of the tiny structural variation. The theory of the TPWD bistable circuit and its application in high-resolution structural monitoring are presented. Then, experimental studies of the TPWD bistable circuit and its performance coupled with a structure are performed, which quantitatively and qualitatively verifies the theoretical predictions and the circuit's feasibility for structural detection. It is seen that the circuit's potential-well depth can be tuned to manipulate the bifurcation point, which can be adapted to different excitation levels. Finally, this paper performs investigations of the TPWD bistable circuit for detecting the variation of a wing structure's parameter and strain, respectively. Results show that by means of the TPWD bistable circuit's bifurcation, nuanced variations of both the structural parameter and strain can be evidently detected, leading to high-resolution structural monitoring. (C) 2019 Elsevier Masson SAS. All rights reserved.
机译：监测飞行器的结构参数和应变对于安全检查很重要。为了检测结构参数和菌株的细节变化，本研究提出了一种具有可调谐电位孔深度（TPWD）的新型双稳态非线性电路，并将其与机电换能器（例如压电传感器和应变仪）集成以形成高分辨率结构传感器。 TPWD双稳态电路的分岔特征可以显着放大响应在结构参数和应变的变化前后的响应的差异。检测微小结构变化是有益的。提出了TPWD双稳态电路的理论及其在高分辨率结构监测中的应用。然后，进行TPWD双稳态电路的实验研究及其与结构耦合的性能，其定量和定性验证理论上的预测和电路的结构检测的可行性。可以看出，可以调整电路的电位井深度以操纵分叉点，这可以适应不同的激励水平。最后，本文分别执行TPWD双稳态电路的研究分别用于检测机翼结构参数和应变的变化。结果表明，通过TPWD双稳态电路的分岔，可以显然检测到结构参数和应变的细节变化，导致高分辨率结构监测。 （c）2019年Elsevier Masson SAS。版权所有。

著录项

  • 来源
    《Aerospace science and technology》 |2019年第4期|98-109|共12页
  • 作者

    Yang Kai; Zhang Zhen; Zhang Yanmin; Huang Hao;

  • 作者单位

    Huazhong Univ Sci & Technol Sch Aerosp Engn Wuhan 430074 Peoples R China;

    Huazhong Univ Sci & Technol Sch Aerosp Engn Wuhan 430074 Peoples R China|Guangdong HUST Ind Technol Res Inst Guangdong Prov Key Lab Digital Mfg Equipment Dongguan 523808 Peoples R China;

    Northwestern Univ Dept Mech Engn Evanston IL 60208 USA;

    Univ Virginia Sch Mat Sci & Engn Charlottesville VA USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Structural monitoring; Bifurcation; Bistable circuit; Tunable potential well depth;

    机译：结构监测;分叉;双稳态电路;可调潜在的深度;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号